About the Authors

John Neena

Affiliation Community Ophthalmology Unit, Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, Delhi State, India

Jose Rachel

Affiliation Health Services, Ministry of Health & Family Welfare, Government of India, New Delhi, Delhi State, India

Vashist Praveen

Affiliation Community Ophthalmology Unit, Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, Delhi State, India

Gudlavalleti V. S. Murthy

gvsmurthy2000@yahoo.com

Affiliation Community Ophthalmology Unit, Dr. R. P. Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, Delhi State, India

for the RAAB India Study Group

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JR GVSM. Performed the experiments: VP GVSM. Analyzed the data: JN VP GVSM. Contributed reagents/materials/analysis tools: JN JR VP. Wrote the paper: JN JR VP GVSM. Coordinated the study implementation: JR.